666553346140154 has 16 divisors (see below), whose sum is σ = 1090734259527360. Its totient is φ = 302975848642560.

The previous prime is 666553346140147. The next prime is 666553346140169. The reversal of 666553346140154 is 451041643355666.

It is a super-2 number, since 2×666553346140154² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 666553346140093 and 666553346140102.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 144937334 + ... + 149465505.

It is an arithmetic number, because the mean of its divisors is an integer number (68170891220460).

Almost surely, 2^{666553346140154} is an apocalyptic number.

666553346140154 is a deficient number, since it is larger than the sum of its proper divisors (424180913387206).

666553346140154 is a wasteful number, since it uses less digits than its factorization.

666553346140154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294505765.

The product of its (nonzero) digits is 93312000, while the sum is 59.

The spelling of 666553346140154 in words is "six hundred sixty-six trillion, five hundred fifty-three billion, three hundred forty-six million, one hundred forty thousand, one hundred fifty-four".